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20313102134412 = 22322573072771453
BaseRepresentation
bin1001001111001100000110…
…01111001010110010001100
32122220220200000100220221100
410213212003033022302030
510130302213121300122
6111111413231303100
74164400415163663
oct447460317126214
978826600326840
1020313102134412
11652181365889a
12234099497aa90
13b446956c44a9
14503233513dda
152535cc91daac
hex1279833cac8c

20313102134412 has 72 divisors (see below), whose sum is σ = 51549200984736. Its totient is φ = 6744373714944.

The previous prime is 20313102134327. The next prime is 20313102134419. The reversal of 20313102134412 is 21443120131302.

20313102134412 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 3 + 1 + 0 + 213 + 441 + 2 = 666.

It is a super-2 number, since 2×203131021344122 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20313102134419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284250478 + ... + 284321930.

It is an arithmetic number, because the mean of its divisors is an integer number (715961124788).

Almost surely, 220313102134412 is an apocalyptic number.

It is an amenable number.

20313102134412 is an abundant number, since it is smaller than the sum of its proper divisors (31236098850324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313102134412 is a wasteful number, since it uses less digits than its factorization.

20313102134412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102447 (or 102442 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 20313102134412 its reverse (21443120131302), we get a palindrome (41756222265714).

The spelling of 20313102134412 in words is "twenty trillion, three hundred thirteen billion, one hundred two million, one hundred thirty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 257 514 771 1028 1542 2313 3084 4626 9252 30727 61454 71453 92181 122908 142906 184362 214359 276543 285812 368724 428718 553086 643077 857436 1106172 1286154 2572308 7896839 15793678 18363421 23690517 31587356 36726842 47381034 55090263 71071551 73453684 94762068 110180526 142143102 165270789 220361052 284286204 330541578 661083156 2195536331 4391072662 6586608993 8782145324 13173217986 19759826979 26346435972 39519653958 79039307916 564252837067 1128505674134 1692758511201 2257011348268 3385517022402 5078275533603 6771034044804 10156551067206 20313102134412